Polyprotic Question!
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Polyprotic Question!
This is probably a super easy question, but how do we know if an acid or base is polyprotic?
Thank you so much
Thank you so much
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Re: Polyprotic Question!
Polyprotic acids are capable of losing more then one proton per molecule. Both polyprotic acids and bases are have more then one hydrogen per molecule. Hope this helps.
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Re: Polyprotic Question!
For example, H3PO4 is polyprotic because it has more than one proton to donate.
H3PO4 --> H2PO4- --> HPO42- --> PO43-.
H3PO4 --> H2PO4- --> HPO42- --> PO43-.
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Re: Polyprotic Question!
The first proton is released most easily. Successive protons are less likely to dissociate.
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Re: Polyprotic Question!
If a compound is polyprotic then it means that it can lose more than one proton. So it'll probably have something like "Hsub2"
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Re: Polyprotic Question!
cara_cavarretta_3F wrote:If an acid is polyprotic is it stronger?
A polyprotic acid isn't necessarily stronger than a monoprotic acid. Whether an acid is strong depends on the equilibrium constant for acids, Ka = ([A-][H+])/[AH]. Having more number of H atoms in a molecule doesn't necessarily mean that the molecule is more willing to donate the H atom.
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Re: Polyprotic Question!
Although having more than one H proton doesn't always mean that it's polyprotic, it's a good sign that it might be because it has multiple protons in the form of H atoms that it can release.
Re: Polyprotic Question!
Polyprotic acids can essentially lose a proton (H+) more than once, or they can lose more than one H+.
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